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WO/2018/073491A1 |
A screen assembly for a digester, impregnation vessel or other treatment vessel for separation of cooking liquor or treatment liquor from lignocellulosic material, typically in a form of chips, in the production of chemical cellulose pul...
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WO/2018/058219A1 |
The invention relates to a process for treating dregs for use as an activator of rubber vulcanization, thus lending a purpose to this residue generated by the cellulose industry, and providing vulcanized rubbers with properties that are ...
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WO/2018/049517A1 |
A novel method is disclosed to make cellulose filaments (CF) from wood or other plant fibers with lower energy consumption. The method consists of multi-stage, high consistency refining, followed by low consistency refining or by low con...
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WO/2018/049522A1 |
The present invention is directed to a method of transforming a pulp fibrous into a pre-dispersed semi-dry or dry fibrous material and to the material produced. The method opens, de-entangles and fibrillates the fibrous material of the i...
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WO/2018/039554A1 |
An infilled artificial turf surface [18] includes a particulate infill [24] with at least a top layer [28] that comprises a mixture of Black walnut shell particles [30] and English walnut shell particles [32], the walnut shell particles ...
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WO/2018/006809A1 |
Disclosed is a screening and deflaking machine for solving the problem in the prior art of pulp screening machines only being capable of screening pulp and not deflaking. The screening and deflaking machine comprises a screen cylinder (1...
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WO/2017/220859A1 |
The invention is related to a method for determining a beating rate of a fibre suspension, wherein part of the fibre suspension flow (14) is led to a separate flow channel (12) as a sample and the beating rate is determined based on the ...
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WO/2017/191030A1 |
The invention relates to a method for controlling a device for treating fibrous material (1) at least partially on the basis of the idle power (PL) thereof, wherein the device has a housing (2), in which a first treatment tool (3) and a ...
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WO/2017/171608A1 |
A screen feed arrangement for a pulp production process, comprising a discharge tank having an outlet, which is connected to an inlet of a discharge tank pump having an outlet, a dilution tank having an outlet, a screen feed pump having ...
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WO/2017/166854A1 |
A method for making a corrugated medium using brownstock pulp of straw, comprising: (I) beating brownstock pulp of straw, the freeness being controlled within 28-32 °SR, the wet weight being 3.2-3.8 g; (II) beating waste paper pulp, the...
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WO/2017/158228A1 |
The present invention is directed to methods and apparatus for screening a pulp suspension where the pulp suspension is directed to a screening space, where a part of the fibres in the pulp is screened using a drum-type rotor. The residu...
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WO/2017/133803A1 |
The invention relates to a blade (10) for screens for the treatment of a fibrous suspension, said blade (10) being mountable on a rotor (1) of the screen. According to the invention, the blade (10) has a curved leading edge (11) or curve...
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WO/2017/125692A1 |
A device (1) for separating the constituents of a fluid medium (M), comprising an element (3) for separating said constituents, helping to define, upstream and/or downstream from said separation element (3), a closed chamber (2), to whic...
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WO/2017/115016A1 |
A rotor unit in a vessel containing a mixture of water and particles of recycled material, comprising a rotor unit body (19); a screen plate (18) installed to the vessel; a rotor (78) connected to the rotor unit body (19) and configured ...
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WO/2017/115017A1 |
An apparatus and a method for processing recycled material, comprising a first pulper (3) having an inlet (2) for receiving recycled material (1), a water inlet (26) for producing a mixture of water and particles of recycled material, a ...
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WO/2017/093568A1 |
A process for reducing the overall energy consumption in the production of nanocellulose dispersions from a base cellulosic material wherein said process comprises an intermediate step reducing the overall energy consumption by at least ...
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WO/2017/089022A1 |
The invention relates to a refining assembly for refining water-suspended pulp fibers (1) between two coaxial refining surfaces (2, 3) which form a refining gap (6), rotate in relation to each other and are formed by refining bars (4) an...
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WO/2017/061937A1 |
A center plate (10) for a rotor (6) in a pulp or fiber refiner (1) has a surface (200) provided with at least one feeding wing (100) for directing lignocellulose- containing material (7) flowing onto the surface (200) towards a periphery...
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WO/2017/061936A1 |
A center plate (10) for a rotor(6)in a pulp or fiber refiner (1) has a surface (200) provided with at least one feeding wing (100) for directing lignocellulose- containing material (7) flowing onto the surface (200) towards a periphery o...
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WO/2017/052391A1 |
The subject of the invention is the method of fractionation of waste paper stock during defibering and separate treatment of fractions of high flexibility in selection of operating parameters which allows various types of raw materials o...
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WO/2017/048171A1 |
A washing arrangement for washing and dewatering cellulose pulp, comprising a rotary drum (5) with a plurality of external compartments (6) on the drum for the pulp to be washed, which compartments are defined by axial compartment walls ...
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WO/2017/046455A1 |
In a method for producing nanofibrillar cellulose starting from cellulose pulp (P), where cellulose is in native form, the cellulose pulp is prebeaten by circulating it in form of aqueous suspension of fibres through a refining gap (G) f...
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WO/2017/041968A1 |
The invention relates to a rotating drum for treating a fibrous material (1), wherein the rotational axis (2) of the drum is inclined by maximally 10° relative to the horizontal. The drum comprises a dissolving zone (4) which adjoins a ...
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WO/2016/193942A9 |
A device including a hollow body defining axially extending compartments therein for receiving a slurry of pulp fibers in a carrying flow. The device includes a stationary screen within the hollow body defining a slurry compartment on on...
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WO/2017/033125A1 |
Method for producing microfibrillated cellulose(MFC), wherein the method comprising the steps of: Pre-treating of chemical pulp, such that, the pulp reaches a Schopper-Riegler (SR) value above 50, and refining the pulp, at a consistency ...
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WO/2017/001359A1 |
The invention relates to an apparatus for the mechanical treatment of high-consistency fiber stock (1), having a housing (2) in which a first treatment tool (3) and a second treatment tool (4) are arranged to form a treatment gap, each t...
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WO/2016/203107A1 |
The present invention relates to a method for defiberizing fibrous material, especially recovered paper or recovered board, in a rotary defiberizing drum having a material defiberizing portion and a screening portion. The method comprise...
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WO/2016/198743A1 |
A blade element (1) for a refiner for refining fibrous material comprises a refining surface (3) provided with blade bars (8, 10) and blade grooves (9, 11) there-between. The blade bars (8, 10) have side walls (8'', 8''') facing away fro...
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WO/2016/197072A1 |
This invention provides a finely ground biomass material used to create biomass-containing plastics having a smooth surface, while also preventing creation of unwanted color including those created by the Maillard reaction which results ...
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WO/2016/193364A1 |
The invention relates to a pressure screen for fractionating a fibrous stock suspension (1), comprising a screen element (11) which is of rotationally symmetrical configuration about a screen axis (10) and divides the pressure screen int...
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WO/2016/189101A1 |
Aspects provide for a Whitewater processing system suitable for managing an ejected Whitewater spray during operation of a paper or board making machine. A de-air system may provide for improved removal of air from the Whitewater. A calm...
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WO/2016/189100A1 |
Aspects provide for a whitewater processing system suitable for managing an ejected whitewater spray during operation of a paper or board making machine. A de-air system may provide for improved removal of air from the whitewater. A calm...
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WO/2016/172616A1 |
The present invention provides, among other things, methods including the steps of providing a cellulosic biomass, associating the cellulosic biomass with an organic liquid to form a mixture, treating the mixture to reduce the moisture c...
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WO/2016/170042A1 |
The invention relates to a method for monitoring a wear structure in a machine for generating or processing a fibrous material web, wherein the wear structure comprises at least one wear element, characterised in that the method comprise...
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WO/2016/165858A1 |
The invention relates to a device for sorting wet dirty fiber materials, in particular for sorting dissolved wastepaper for the first time, comprising a housing and a screen which has a plurality of screen openings through which a part o...
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WO/2016/157141A1 |
The present invention relates to an activated lignin composition, its manufacture and its use thereof. It also relates to a resin comprising lignin, its manufacture and use.
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WO/2016/142035A1 |
A bar-type screen cage (1) is specified which has profiled screen bars or profile bars (2) which are spaced apart in a circumferential direction. Multiple support arrangements (4) which are spaced apart in an axial direction of the scree...
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WO/2016/128092A1 |
The invention relates to a refining assembly for refining aqueously suspended pulp fibers between two refining surfaces (2, 3), which form a refining gap (1) and rotate in relation to each other and are formed by refining bars (4) and gr...
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WO/2016/124285A1 |
The invention relates to a method for treating a fibrous-material suspension flow formed at least partially of waste paper, at least comprising a dissolving process (1) and at least a subsequent first fractionation stage (2) for forming ...
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WO/2016/110836A1 |
A method for recycling paper to produce a less white and clean office paper product for paper printing and writing, said method comprising the steps of : collecting waste papers; sorting said collected papers waste without the need to se...
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WO/2016/106304A1 |
A process for fibrillating a fibrous pulp, and products made using the same. The process comprises providing a fibrous pulp of liquid and staple fibers having a first liquid to fibers ratio of less than or equal to 6:1, applying stress t...
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WO/2016/091968A1 |
The invention relates to a method for compression refining of fibers for papermaking, wherein a slurry of fibers with a consistency of between about 2 wt% and 20 wt% of dry fibers in water is subjected to compression forces in an apparat...
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WO/2016/083170A1 |
A method for producing packaging paper, in particular sack kraft paper, is specified, in which method fibrous stock suspension is thickened in a stock preparation to a solids concentration in the range from approximately 30% to approxima...
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WO/2016/081686A1 |
A wet process for cleaning biomass is disclosed, comprising: introducing biomass feedstock to a vibrating separator, to generate an overflow stream and an underflow stream, wherein the overflow stream comprises biomass and large grit, an...
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WO/2016/066894A1 |
A blade element (12) for a refiner (10, 11) for refining fibrous material comprises an inner edge (13) and an outer edge (14) and first blade bars (18) and first blade grooves (19) therebetween, the first blade bars and the first blade g...
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WO/2016/068783A1 |
A method of providing a diluted discharge pulp comprises the steps of providing (SIO) pulp with a first consistency in a digester (1), which pulp comprises cooked lignocellulosic fibrous material, diluting (S20) the provided pulp by feed...
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WO/2016/059292A1 |
The present invention relates to a screen cylinder (100) that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp or fibre suspensions of the pulp and paper industry or other similar suspensions. T...
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WO/2016/044936A1 |
A pulp lifter mounted to a discharge end wall including an elongate body portion rotatable successively between a discharge condition, in which an outer end is raised above an inner end of the body portion to cause pulp in a pulp chamber...
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WO/2016/044935A1 |
An insert for covering one or more selected surfaces of a discharge end assembly including a discharge end wall of a mill shell partially defined by an outer perimeter wall thereof and a number of pulp lifters mounted on the discharge en...
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WO/2016/020184A1 |
The invention relates to a screening device (1), comprising: - a screen disc (3) which can rotate by means of a vertical rotating shaft (2) for screening a medium (4) to be screened, - a feed pipe (5) for feeding the medium (4) to be scr...
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